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# CarRace

last edited by 11 years, 12 months ago

Home > Do Mathematics -> K-7 Algebra and Functions -> Linear Functions -> Car Race

Race the cars! - Classroom/Home Simulator  (See also: Students Building Simulators - Car Race)

 Sorry, the GeoGebra Applet could not be started. Please make sure that Java 1.4.2 (or later) is installed and active in your browser (Click here to install Java now)

 Sample question for Level: Algebra 1 Problem:   Set RED CAR: Speed=15km/h and Start=24km and BLUE CAR: Start=0km. Question: If the cars meet in 4 hours, what is SPEED of BLUE CAR?     Use the activity to find your answer and then talk about the math. Answer A: Using the activity. Set the 3 sliders. Think about what it means to "meet in 4 hours". Find t=4 on the horizontal axis. Move the 4th slider (speed of blue car) until the lines intersect above t=4. See that the slider is at 21km/h. Answer B: Thinking about the math. Thinking: blue car has to "catch up" 24 km in 4 hours. This means it must go 24km/4h=6km/h faster than red car. The speed of red car is 15km/h. So the speed of blue car is 15km/h+6km/h=21km/h. Please write in suggestions for good questions!

 Home > Do Mathematics -> Algebra and Functions -> Linear Functions -> CarRace

algebra, functions, lines, slopes, cars, distance, speed, time, velocity, dst, geogebra, application, geometry, program